<div class="apiDetail">
    <div>
        <h2><span class="path">setting.callback.</span>onAsyncError</h2>
        <h2><span>Function(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown)</span>&nbsp;</h2>
        <h3>Overview<span class="h3_info">[ depends on <span
                class="highlight_green">jquery.ztree.core</span> js ]</span></h3>
        <div class="desc">
            <p></p>
            <div class="longdesc">
                <p>Used to capture the error event when execute ajax.</p>
                <p class="highlight_red">If you set 'setting.callback.beforeAsync',and return false, zTree will not
                    execute ajax, and will not trigger the 'onAsyncSuccess / onAsyncError' callback.</p>
                <p>Default: null</p>
            </div>
        </div>
        <h3>Function Parameter Descriptions</h3>
        <div class="desc">
            <h4><b>event</b><span>js event Object</span></h4>
            <p>event Object</p>
            <h4 class="topLine"><b>treeId</b><span>String</span></h4>
            <p>zTree unique identifier: <b class="highlight_red">treeId</b>.</p>
            <h4 class="topLine"><b>treeNode</b><span>JSON</span></h4>
            <p>JSON data object of the parent node</p>
            <p class="highlight_red">When load root nodes, treeNode = null</p>
            <h4 class="topLine"><b>XMLHttpRequest</b><span>String</span></h4>
            <p>XMLHttpRequest Object, please refer to JQuery API documentation.</p>
            <h4 class="topLine"><b>textStatus</b><span>String</span></h4>
            <p>a string categorizing the status of the request("success", "error"...), please refer to JQuery API
                documentation.</p>
            <h4 class="topLine"><b>errorThrown</b><span>String</span></h4>
            <p>eWhen an HTTP error occurs, errorThrown receives the textual portion of the HTTP status, please refer to
                JQuery API documentation.</p>
        </div>
        <h3>Examples of setting & function</h3>
        <h4>1. When execute ajax make error, alert message.</h4>
        <pre xmlns=""><code>function myOnAsyncError(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown) {
    alert(XMLHttpRequest);
};
var setting = {
	callback: {
		onAsyncError: myOnAsyncError
	}
};
......</code></pre>
    </div>
</div>